Convoy SP-25

Convoy SP-25 was a British merchant convoy which was sent from St. John's in Canada to Plymouth in England in February 1943. The convoy was ambushed by Kriegsmarine U-boats in the Channel Approach off the English coast, and the U-boats had a field day, sinking three of the British transport ships. This was a blow to the British merchant marine force, which would suffer the loss of an escort on the same route in the Northern Celtic Shelf later that day.